Mold for forming cementitious blocks



c. B. VQEGE new FOR FORMING CEMENTITIOUS BLOCKS Sept. 21,, 1948.

2 Sheets-Sheet 1 Filed Jan. 11, 1946 l/WENTOR We. BY.

Se t. 21, 1948. c, VQEGE 2,449,732

" ,MOLD FOR FORMING CEMENTITIOUS BLOCKS 2 Sheets-Sheet 2 Filed Jan. 11, 1946 Patented Sept. 21, 1948 ATEN JEFIGE? ct MEismTioUsm scams... zsruzixn This invention: relates to tionumore :lparticularl-yqto ..a mold-especially de signedwandiadaptedvfor use in ;the;,produ.ction rot.

amolds andihasiiela-n the table or frame /I is .aadepending lorackec fl av n enu ward and-inward i clined slow hollow cementitious blocks, a ndit is a particular,

object. of the'rinvention rto provide a.- mold iinclud-ie ing a form comprisinaseparable p walls enacting. in a. mannerito assure .a rigid; strueture-duringea molding operation: T.

Another-object: of. thezinvention is torprovide a mold includingta bedz plate withassociated side andmendawallsnthe sideiiwalls being swingingly, carried by 5 top table-aandimeanslcoasting with said side walls and bed plate :to-.-assure..corrects positioning-2 of, the. side wal-lswhenthe. mold is in assemblyri r a ,moldcof .this kind-rincluding-a table. and ibed l It is also ana objectsof.theiinventiontto prpviae.,.-.

plate, a the bed. plate having associated therewith,

endlwalls which freely: pass throughthe table. Arradditional object 'of theinvention is ,topro:

vide .a moldaincludingna top table'andawherein.

the top of the mold cavity is on the samelp lanei as the table top.

Theinvention consists i11..the.. details .of con? struction andfli'n "the combination and. a'rr-ange..

ment. of vthe .severalflp'arts. of. my improved. mold.i..

whereby certain important, advantagesvare. .at.-

tained', aswillib'e hereinafter more ,.fully"set.forth .'l In order that my invention maybebetteriim derstood l will now proceed todescriloeJth same withfllreference. to the; accompanying drawings.

wherein: l

Figure. 1 is a :view in. perspective .of, a mold l" constructedsin,accordance. with. 'an embodiment of. my invention, withithe' several. units therein. comprisedin'separated .-relat'ior i;

Figure 21s a sectional .viewtaken. siibsjtantiallyg; on the'lin'e of the top unit shdWnQinLEig';

urell; l i a Figure .1 ZHi's .;a .sectional .view. taken subst n.-

unitslilliistratedih Figure 1; and...

Figure .3 islla. sectional. view. takemthroiigh the various. .unitsfof. the mold inassembled.relation...

In. the embodiment. of -.the .inventiorias .i1lusl-,

marginal. portions .of this -opening of. .thIQ table m. frame I are'themold'side walls .2' or. desired d mensionsfa'ndi which have "the major portion) of their upper" marginakedges.v extending within the opening-of the tablefonirame" l', a i (fit-19, ly ili; j'

lustrated in.Figur.e;zotthedrawingsi At "each ndportioh of the central opening of throu h Whichpasses ah inge pin tcarried by 2a sideg'wal-ld, :wherebwsaid-esidewalk-is mounted forrswinging novementariIhel-pin coactsqwit thevslotma to assurehprope z or eliectivewworking. assembly of the sidewall Laswill l ereinafteribe more clearlyiunderstoodm. Theiloracket 3,- asillus'trated in Eigurze-Zof the. drawings extendslinwardlyhofr.thepcentral ope-n in lofr thestabie or jrame .1 and the upp er -mar ginalaportion ofvthe wall;- in ,its. outer.-face provided with a pocket or recess bltoiaccommow datemsaid;extended;portion;of-thelbracketlat The, .llowersmanginall-edge of eachs of? the sides walla-f2. adjacent y eachend. thereof is providedi withla.relatively,long depending toothri havingfa. downwardly .Qandvinwardly heveledrouter face c. Thef'eopposite endsportionswof heachuof the side. walls 2 i are providedwiththei outwardly ;clirected-:.i

. extensions d 1 ,whiel m underliet the adjacent :Aendi marginal p'ortionof .theltable, or frame. It. and disn, posed. transversely, acrossr the inner :iace of. .then side'iwallvl atwthegiunctions otthe extensionstd i ccWallaar theuidelslots a.

Thenumerallldesignates an intermediatetable g which. is iprovidedlwitli. a v.cei'itrah opening of Ma. length; .substantiallyfltequal to 115116 length of r the; central. op m lof the at ne-tam 1+ and isaiditable l at, the opposite. sides of. ,the; central .Hopeningi u thereof. and; linwrelatfivelyg close proximity to its; endsw-is provided. with the iipwaitdlyfopening .slots or grooves ".8, vthe; ,bolttom..-wallskltof. which :iiaresbeveledcomplementaL totheibeveledhiaces c of, the't'eeth '5 of the sidewalls." Th'teeth 5 .i'nlthe assembly of. the rmold;snuglmfitwithin. theslots ongroovesfa and.th.Lgzontact,oiltheibeyeled faces l c of thelteethfi ,with thegbottoms .oflthei slots} or. grooves assures positioning .of thelside w allslZ... when...theimoldiisdn,working assemblyi; 1

Th. tabl. .1, along thermarginalaportions .deel fining. the sidesl oft the centra h opening f .saids=,-1,. bed is ,lprovidedfiom -i.abor\'le-.. withithel rabbetsior... grooves ftosprovidel receiving,. -,guides; foigma pallet. '1

It is .believedtohe; apparent that the inclined slotsJaL WithQthemontacting.pins .tlfiirtherrassure...-. the-.pefiietitivej. placement; barns. sidenwallsifi in... themolda'ssembl t,witlhthe topgofltheimoldibavity;L, coplanar.wvitli.;the',molditop. table.,l as nshoiwnmin. Figure 3 of the drawings.

As. .is illustrated. in .Figure, 1 .of. the .clrawings, the, rportioiis .of..th. .-tab1c I extending across. the. opppsiteliends." of. theqcentral opening .of said. bed. are providedwfilithlgflid recesses. 9 ,Z theIinter mediate portions of which are coplanar with the bottom faces of the rabbets 9 and with said recesses 9 bridging the space between the outwardly disposed or vertical inner walls of the rabbets 9.

At the extremities of the rabbets 9, the side walls of the central opening of the table 1 are provided with the guide slots It) through whichslidably engage the side marginal portions of the end walls I I. The side edges of these end walls I l are inwardly beveled and the slots It! are of corresponding form in cross section.

The end walls I l are carriedby a bed plate [2 which is detachably engaged with and held to a pressure head l3. As is illustrated in the accompanying drawings, this detachable connection is accomplished through a "conventional and at the transverse center thereof isprovided with the'upstanding core members [5 while the inner faces of the end walls ll'inalignment with the core members l5 are provided with theinfwardly directed semi-core members l6."

It is believed to be apparent that when the mold is properly assembled, a pallet (not shown) may be fed into the mold cavity from above or down through the top or, of course, can be fed into the mold in the process of assembling through the guide recesses 9'. V

While the present mold structure was designed to form a part of a press structure, for operation by hydraulic pressure or other suitable power, it may be assembled and used as a unit independently of any press machin structure. In such case the assembling operation would involve first the'lowering of the intermediate table onto the underlying part which comprises the bed plate,

Vertical end walls II and core'members l5. Itwill be understood that the bed plate might be supported in any suitable manner during this operation. In the course of placing the intermediate table on the underlying bed plate, the table might be held momentarily at an elevation where the top surfaces of the guide recesses 9 and 9' are in the plane of the top edges of the walls H and the cores l5 and a pallet then inserted and slid along the guide recesses until it is in a position where it may move down'onto the bed plate l2. The intermediate table may then be lowered until it comes to rest upon the bedplate l2 as shown in,

Figure 3. I y,

After the intermediate table has been placed in position, either the top table may be lowered or the bed plate and intermediate table may be raised to extend the side walls 2 to a position where the teeth Swill "enterithe notches or grooves 8. When the walls reach this position the bottom edges thereof will rest upon the top surfaces at the two sides of the opening of the intermediate table thus completing the mol structure as it is shown in Figure 3.

It will be understood, of course, that when the intermediate table is being assembled on the bed plate'the beveled edges of the end walls II will pass into the slots I!) so that a locking connection between the intermediate table and the'bed plate is obtained.

Where the mold structureformsa part of a press machine the bed plate I 2 is carried upon the press plate or head l3 which in turn is supported for up and down movement by the'carrying piston I3. The intermediate table forms a part of a vertically moveable unit of the machine while the top table I forms a fixed part of the machine.

With such an arrangement of the mold structure as an integral part of a press structure the head I3 is first moved up until the top surfaces of thewalls l I and of the cores I5 are in the proper plane with respect to the guides 9 and 9 to receive a pallet, after which continued upward movement of the head [3 is maintained until the walls I l and the cores l5 extend through the opening of the intermediate table and such table comes to rest upon the bed plate l2. The two coupled units are then continued upwardly until the teeth 5 engage in the slots 8 thus completing the assembling of the mold.

After the complete assembling of the mold the material to be cast therein is introduced and a suitable pressing element or top head is lowered to compress the material in the mold.

It is also believed to be obvious that under the pressure of the head I 3, all of the elements of the mold will be maintained in efiective working posi- *-tion with the side 'walls parallel. Upon initial release of pressure by the head l3, the side walls 2 will"release,*and'upon continued withdrawal of the head [3, the end walls II will be entirely removed and thus permit the removal of the pallet and the block formed thereon. Obviously,

as the walls H are sufliciently withdrawn, there will be a corresponding sufiicient withdrawal of thejc'ore members I2. Y

The .rnanner 'of tamping the cementitious-or kindred material poured into the assembled mold forms no part of the present invention.

From the foregoing description it is thought tobe obvious that a mold constructed in accordance with my invention is particularly well 5 adapted for use by reason of the convenience and 'head, a bed plate carried'by the head, opposed walls for the mold cavity carried by the head, opposed walls for the mold cavity carried by the table, and means for maintaining the walls of the mold in assembled relation.

' 2. A mold comprising a top table, a carrying head, a bed plate under the table, opposed walls for the mold cavity carried by the head, opposed side walls for the mold cavity carried by the table, said side walls being swingingly supported by the table, an intermediate table and coacting teeth and grooves carried by the side walls and the intermediate table for holding the side walls in assembled relation.

3. A mold comprising a top table provided with T 'a 'central opening, side walls pivotally engaged with the table and extending along the opposed margins of the opening, said side walls being below the table, a bed plate, upstanding opposed walls carried by the bed plate to be received between the first named walls, an intermediate table having a central opening and adapted to seat upon the" be'd plate, said intermediate table at opposite sides of the opening thereof having grooves in its top face, and teeth carried by the side walls to engage withinthe grooves, the outer faces of theteeth and'theibottom walls of the grooves being on a complemental bevel to properly position theside through the intermediate table. 

